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Stellar Occultation by (407) Arachne on 2023-11-18 (03:37:32 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : b3e0471a-9204-4ad0-890a-2f5cff4120b4 [observed]

 Occultation Date + Time   : 2023-11-18 at 03:37:32 UT +/- 0.03 min  [1]
 Object Designation        : (407) Arachne
 Star Designation          : GDR3 3443841259112683520
 Star Coordinates (ICRF)   : RA = 05 57 20.0168, DE = +30 31 51.965  [2]
 Star Magnitudes           : G = 11.54 mag, RP = 10.63 mag, BP = 12.41 mag
 Object Magnitude          : V = 13.07 mag
 Estimated Magnitude Drop  : 1.8 mag
 Estimated Max. Duration   : 13.7 sec
 Object Mean Diameter      : 95.1 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 6.9 km/s
 Elongation to Moon & Sun  : 154° (sunlit = 25%), Sun = 145°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.57 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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